Did I make the cheapest DIY amplifier?

*6 layer PCB FAB+Assembly - ONLY $2!* :https://jlcpcb.com/?from=LeftyMaker

I wanted to make a cheap DIY amplifier, so I found the cheapest amplifier IC and built an audio amp around it. Could this be the cheapest DIY amplifier you can make? The final price will surprise you!

My homemade amplifier is based around the FM8002A chip, which costs just 4 cents apiece. Since it is an SMD component, the chip needs a printed circuit board to work, so I designed one and had it manufactured by JLCPCB.

I gathered the rest of the components from LCSC.com and assembled the amplifier by hand using my soldering station. Soldering SMD components seems challenging at first, but it is really not if you are patient and use parts that are large enough.

The result: after a few tweaks to the design, I had a great-sounding, albeit low-power audio amplifier that cost well below a dollar to put together. Thanks for watching!

🛒 Shopping links*:
🟢 Parts for the amp: LCSC.com
🟢 The soldering iron I use: https://amzn.to/3PHuoiy
🟢 The oscilloscope I use: https://amzn.to/3J71k02
🟢 OLFA cutting mat: https://amzn.to/3HX3Ipp
🟢 OLFA cutting knife: https://amzn.to/3wgmUMu
🟢 Mini Breadboards:
Amazon US: https://amzn.to/3vvFtfC
AliExpress: https://bit.ly/brdbd1
🟢 Helping Hands:
Amazon US: https://amzn.to/4bmrbxx
AliExpress: https://bit.ly/3yo2wKd
🟢 Ceramic tweezers:
Amazon US: https://amzn.to/4bN4thF
AliExpress: https://bit.ly/3zUrVGG
🟢 3.5mm audio breakout:
Amazon US: https://amzn.to/3V36ilb
AliExpress: https://bit.ly/3UItDr0
🟢 SMD to breadboard adapter:
Amazon US: https://amzn.to/3URbBTs
AliExpress: https://bit.ly/415zQPr
🟢 The wireless microphone I use: https://amzn.to/4bGMnPh

*Affiliate links. The price you pay DOES NOT CHANGE, but I may make a small commission if you make a purchase. Your support helps me make more videos. Thanks!

#electronics #amplifier #pcb #diy
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